Great Britain’s heavyweight world champion Anthony Joshua says beating Ukrainian veteran Wladimir Klitschko in their mouthwatering showdown for the IBF and WBA crowns next April would entitle him to be called a legend.

The 27-year-old 2012 Olympic champion , who defended his IBF title on Saturday against American journeyman Eric Molina, will face off against Klitschko on April 29 at Wembley Stadium and said the bout could be a life-changing experience for him.

“A knockout is the cherry on top but to win, whichever way, is very possible,” said Joshua.

“This is a fight that can change one from champion to legend overnight.

Watch: Anthony Joshua v Eric Molina

“It will draw masses of attention and they are the type of fights that can change the way people view you.”

Klitschko, who will be 41 by the time the bout takes place, said he has stayed in the sport since losing his WBA, IBF and WBO belts in a surprise defeat by troubled British pugilist Tyson Fury in November 2015 expressly to regain his titles.

“I am obsessed with my goal to become the champion again,” said Klitschko, who has not fought since that defeat.

Joshua, who is 18-0 in his professional career and has never been taken the distance, conceded that while Klitschko might be on the elderly side for a boxer contesting a world title, it did not make him any less dangerous.

“I know what they mean when the say the old lion still roars and I know what that obsession is like because I live with that same obsession, it’s just a clash of the titans,” said Joshua, who was a sparring partner for Klitschko early in his professional career.

“In life you have to prepare for the unpredictable so you just never know.